Year	annual % growth
1961	3.9930644793472823
1962	7.512508258200242
1963	28.260880122535838
1964	31.23486261087919
1965	32.88787297503518
1966	19.43758010506744
1967	6.655103960739808
1968	5.3133490527877285
1969	45.14881463900039
1970	60.21388540295641
1971	7.599009020173071
1972	-32.15800266239357
1973	-36.68647808353667
1974	5.609045641895591
1975	-0.9573673581065805
1976	-9.64331582098285
1977	7.870607091532662
1978	2.762719479585215
1979	22.65623517818942
1980	4.252561383724114
1981	-4.1868631354371075
1982	13.240789641725968
1983	4.455084813127826
1984	-8.482606442504988
1985	-28.101175818172337
1986	4.843365704832991
1987	9.859765334410824
1988	41.087946827920234
1989	-23.976858301616844
1990	0.6241153418181398
1991	22.9889446414077
1992	3.561866656326586
1993	-21.229649573142623
1994	32.92117908512424
1995	-1.2063993801264274
1996	10.386939574618253
1997	-9.156339096120206
1998	-14.509974384183408
1999	0.06598843352504957
2000	36.839136595731844
2001	6.981609491558373
2002	-2.2526712366242663
2003	-5.611650873615616
2004	0.01959125649635496